Watson disappointed after Aussies draw ODI series

Stand-in captain Shane Watson has warned Australia must rekindle their killer instinct, describing their performance in the drawn five-match ODI series against the West Indies as "very disappointing".

The tourists claimed a 30-run win in Sunday's final match in St Lucia, levelling the series 2-2 and thereby avoiding a first ODI campaign defeat to the West Indies in 17 years.

But, as in previous games of the tour, Australia allowed the Windies back into the match just when an easy victory seemed assured.

Chasing 282, the hosts' challenge appeared finished when captain Darren Sammy strode to the crease with the score 7-118.

What followed was the innings of Sammy's career, smashing 84 off 50 balls as he and Andre Russell (41) scored 101 off just 59 deliveries for the eighth wicket to drag the Windies back into the match.

It reflected similar moments in the series where Australia took their foot off the throat of their opponent, such as the tied third game in St Vincent where the hosts recovered from 6-117 to all but snatch a win.

This time Australia had enough runs on the board to repel Sammy's blitz and claim victory but Watson said a more ruthless approach was required to overcome the worrying trend.